Upon a cold start my vehicle was making a rattling and ticking sound and the car would shake. There were no engine failure or warning lights that came on but the engine did not sound like it was running properly and clearly something was wrong. I took the vehicle in and was told that the Variable Cam Timing parts need to be replaced. In doing some research it appears that the VCT on the 2019 Navigator has a recall for the VCT but my VIN was not included on the recall for some reason.